\r| \r \r新砂 <\/span><\/span>\r<\/p>\r<\/td>\r | \r \r1.16 <\/span><\/span>\r<\/p>\r<\/td>\r | \r \r1.18 <\/span><\/span>\r<\/p>\r<\/td>\r | \r \r1.15 <\/span><\/span>\r<\/p>\r<\/td>\r | \r \r1.13 <\/span><\/span>\r<\/p>\r<\/td>\r | \r \r1.15 <\/span><\/span>\r<\/p>\r<\/td>\r<\/tr>\r\r| \r \r再生砂 <\/span><\/span>\r<\/p>\r<\/td>\r | \r \r0.56 <\/span><\/span>\r<\/p>\r<\/td>\r | \r \r0.59 <\/span><\/span>\r<\/p>\r<\/td>\r | \r \r0.52 <\/span><\/span>\r<\/p>\r<\/td>\r | \r \r0.53 <\/span><\/span>\r<\/p>\r<\/td>\r | \r \r0.55 <\/span><\/span>\r<\/p>\r<\/td>\r<\/tr>\r<\/tbody>\r<\/table>\r\r <\/span><\/span>隨著環保立法的日臻完善，固體廢物的排放將更加嚴格限制，覆膜砂熱法再生是一個一舉多得的好項目，不但解決了廢砂排放造成的環境污染，而且再生砂比新砂更好用，再生砂和焙燒砂已成為生產低發氣、低膨脹、高強度覆膜砂的主要材料和工藝。再生砂成本每噸僅百元左右，再生砂有較好的利潤空間。<\/span><\/span> \r<\/p>\r<\/div>\r<\/div>\r<\/div><\/div>
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